Our batteries could be used in approximately 400 circles. The performance of the battery will begin to decline after 300 circles.

After 300 cycles, the capacity will decline to 90%;
After 400 cycles, the capacity will decline to 80%;
And after 400 cycles, we do not recommend customers to continue using the battery anymore per our battery cell supplier's suggestion.

To keep the better performance of the battery, we suggest recharge and discharge the battery every four months and you'd better keep it recharged when it is not used.